Forsythe (IMAGE) University of Cincinnati Caption University of Cincinnati geology student Ian Forsythe studied the fossil record in the Late Ordovician Period to learn more about a phenomenon called the Richmondian Invasion. Credit Ian Forsythe Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.